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Keywords:

  • glaze;
  • glass;
  • ceramics;
  • archeology;
  • Iran;
  • lapis lazuli

Abstract

Raman analysis of an ancient ewer (Iran, 13th century) belonging to the Lâjvardina blue glazed ceramics shows that the ultramarine colour results from the unexpected deposit of a lazurite-rich slip at the interface between the body and a cobalt-containing lime-rich glaze. This confirms the use of Lâjvard (lapis lazuli) as reported in an old alchemist's treatise (Abû'l Qâsim Kâshâni, 14th century). Copyright © 2003 John Wiley & Sons, Ltd.